My bottleneck decision

Hi all, well I decided on a system that I would be buying on newegg but then some very interesting videos I found on youtube showed that, "hey, look, you only need a good GPU to run games!" So yeah that's what I do, game on a 1280x1024 resolution. My current setup is:

CPU: AMD Sempron 3400+ (2.0 GHz)

Memory: 1.5 Gigs of DDR

GPU: ATI Radeon HD 4770 (just arrived)

My question is (I am in dire need of answers, this decision could potentially save me $200+ dollars) how much of a performance increase (in terms of frames per second) would I generally see in games if I upgraded my CPU to an AMD Phenom II X2 550 and the memory to a gig of DDR3?

I am in urgent need of help because I need to decide whether to just have my GPU and PSU or spend another $200 on the new mobo, the new CPU, and the new RAM.

Please help me, thank you.
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  1. ^ That CPU is very weak...And if you play recent games, that CPU surely cant handle it...
    And you dont have to necessarily buy the 550 for that resolution...Even a Athlon II X2 240 would do...
  2. If I were you, I would stop believing everything you see on youtube.
    You need more processor than what you have listed, for sure.
  3. I agree with gkay, that CPU is ancient.

    You would see a massive performance increase with a faster CPU such as the Phenom II X2 550.
    If you also add 4 gb of some decent RAM to the mix you'll get the most out of it.

    You might be spending a little more than $200 but I would say its worth it.

    The GPU is decent and should be fine for a while, and you can always upgrade when you get the chance.

    Here's an example of what I would get:

    Motherboard (B/C its an AM3 board you can always upgrade):
    http://www.newegg.com/Product/Product.aspx?Item=N82E16813131603

    Processor:
    http://www.newegg.com/Product/Product.aspx?Item=N82E16819103680

    RAM:
    http://www.newegg.com/Product/Product.aspx?Item=N82E16820231193

    Total: ~$280
  4. Well if I can get over 15-20 fps in most games then I will be happy, I'm trying to spend as little money as possible because its my parents' money, so will my old CPU and the 4770 give me at least that amount of FPS in games? I can always buy more ram and/or overclock my CPU a bit.
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